I wanted something really easy that would let me add a "buy" button with a link to my publisher (I'm a writer), and this was definitely it. It took me longer to choose & install the plug-in than it did to create the button (the presets were perfect for what I needed). It looks great & more importantly, it works.
Literally could not have been easier (unless they add a mind reading feature). Plus it seems to have lots of flexibility & potential for when I'm ready to climb a little higher up the learning curve.